Cookie information security: cookie information security. Cookie information security for user login: cookie information security everyone knows that after a user logs on, the user information is generally stored in the cookie, because the cookie is saved on the client, cookie information
In an insecure NIS instance, The ypcat passwd command can be used on any machine to view the hash values of all NIS accounts. This poses a security risk. After C2 Security is set, ypcat passwd can see that the original hash value of the password is replaced by # logname, which can prevent the password hash from being stolen. You only need to perform a few steps to set C2
System Security
Minimum Service Method
File Security (SUID/SGID/stick/chattr)
Upgrade system and software
Least permission method (SU/SUDO)
SSH Security suggestions
Min service method (System V/xinetd)
Disable unnecessary services:
# Vim/root/service. Sh
#! /Bin/bash
Service xinetd stop
Chkconfig xinetd off
Services = "Network sshd syslogs lvm2-monitor messag
When you do not need to use a secure folder, you can uninstall it, and the contents and applications will be deleted, as follows:
1. On the main screen, click "Settings".
2. Click "Lock screen and security".
3. Click on "Security Folder".
4. Click "Uninstall".
5. If you choose Uninstall at this time, all applications in the Securi
Third, System port security Configuration
Here is a brief introduction to some of the basics of ports, mainly to facilitate our next security configuration to lay the groundwork, if
You have a deeper understanding of the port and you can skip this step.
The port is the logical interface between the computer and the external network, and the first barrier of the computer, the port configuration is correct or
While most it people know about virtual desktops and know they can be used in data centers, a useful use of this technique is often overlooked. Desktop virtualization is now very lightweight, and employees can connect remotely to the applications they need, while at the same time better secure their devices.
I recently talked to an Atlanta financial company who used the security technology of Ringcube Technologies company Virtual desktops and the Saf
What is an mdb database? All network administrators who have some experience in website creation know that the combination of "IIS + ASP + ACCESS" is the most popular in website creation. Most small and medium Internet websites use this "package ", however, security issues are becoming increasingly prominent. Among them, the most vulnerable to attackers is the illegal download of the mdb database.
Mdb databases do not have
Talking about PHP security protection-Web attacks and security protection web
SQL Injection attacks)
Attackers can insert SQL commands into the input field of Web forms or the string requested by the page to trick the server into executing malicious SQL commands. In some forms, the content entered by users is directly used to construct (or affect) dynamic SQL commands or as input parameters of stored proced
Thread security issues in singleton mode and thread Security Issues in Mode
What problems does a single meeting bring about?
If multiple threads call this instance at the same time, thread security issues may occur.
Where is a singleton generally used?
The purpose of a singleton is to ensure that there is only one instance at runtime. The most common scenarios i
Identifies network security threats and vulnerabilities and Network Security Vulnerabilities
1. Social engineering attacks are an attack type that uses deception and tricks to persuade uninformed users to provide sensitive information or conduct behaviors against security rules. It is usually expressed by people, emails, and telephones.
2. Major Types of social
Data security: MySQL security accounts for the majority of applications in practice. If you are curious about this technology, the following articles will unveil it. We all know that MySQL (the best combination of PHP and MySQL) is not worth noting.
The following are 23 notes for MySQL (best combination with PHP:
1. If the connection between the client and the server needs to span and pass through an untrus
Article Title: security enhancement measures use Openssh to build a secure network. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
Implementation steps:
On each server
1. install the software package:
Openssh-3.4pl-sol7-sparc-local
Openssl-0.96d-sol7-sparc-local
Zlib-1.1.4-sol7-sparc-local
Prngd-0.0.25-sol7-sp
As a system administrator, it is very important to perform a comprehensive security check on the system on a regular basis. Recently, some friends wrote that some inexplicable problems have occurred, for example, the biggest problem is that the network service is obviously slow, which is very likely to be attacked.
Practice has proved that the default installation is not safe for any system. In fact, no matter whether you use windows, Linux, bsd, or o
Visit some HTTPS websites, especially domestic websitesChinese tips:Unable to connect securelyFirefox cannot guarantee the security of your data on sx.ac.10086.cn because it uses SSLV3, a security protocol that is currently poorly secured.Professional information: ssl_error_unsupported_versionEnglish tips:Unable to Connect securelyFirefox cannot guarantee the safety of your data on XXXX because it uses SSLV
First, install Dede when the database table prefix, it is best to change, do not use the dedecms default prefix Dede_, can be changed to Ljs_, random an irregular, difficult to guess the prefix can be.Second, the background login must turn on the verification code function, the default admin admin Delete, changed to a dedicated, complex points of account, administrator password must be long, at least 8 bits, and the letters and numbers mixed.Third, install the program must delete the install dir
1. Do not rely on the Register global Variables feature (register_globals)
Registering a global variable has made PHP very easy to use, but it also reduces security (which often breaks security). It is recommended that the Register_globals command be closed during programming and this function will be canceled in PHP6.
2. Initialize the variable before it is used.
If the Register_globals feature is s
1. Do not rely on the Register global Variables feature (register_globals)
Registering a global variable has made PHP very easy to use, but it also reduces security (which often breaks security). It is recommended that the Register_globals command be closed during programming and this function will be canceled in PHP6.
2. Initialize the variable before it is used.
If the Register_globals feature is started,
Rule 1: do not trust external data or enter the security of Web application. The first thing you must be familiar with is that you should not trust external data. External data (outsidedata) contains no data directly imported by programmers in PHP code.
Rule 1: Do not trust external data or import
The first thing you must be familiar with about Web application security is that you should not trust external
Iot security: multiple security vulnerabilities in LED lights
Recently, a foreign security expert found that Zengge's Wi-Fi LED lamp has multiple security vulnerabilities.
ZENGGE is a high-tech company integrating LED Controller Product R D, manufacturing, sales and engineering design, installation and service.
Wi-Fi
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